I suppose the reasons for the use of so much violence in modern fiction will differ with each writer who uses it, but in my own stories I have found that violence is strangely capable of returning my characters to reality and preparing them to accept their moment of grace. Their heads are so hard that almost nothing else will do the work. This idea, that reality is something to which we must be returned at considerable cost, is one which is seldom understood by the casual reader, but it is one which is implicit in the Christian view of the world.

Flannery O'Connor, Mystery and Manners, p. 112

“If the point of life is the same as the point of a story, the point of life is character transformation. If I got any comfort as I set out on my first story, it was that in nearly every story, the protagonist is transformed. He's a jerk at the beginning and nice at the end, or a coward at the beginning and brave at the end. If the character doesn't change, the story hasn't happened yet. And if story is derived from real life, if story is just a condensed version of life, then life itself may be designed to change us so that we evolve from one kind of person to another. ” Donald Miller, A Million Miles in A Thousand Years